OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Scorpions living today have increased their numbers since they first appeared
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Scorpions in the fossil record are smaller than their descendants are
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Scorpions have changed as a result of natural selection
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Scorpions do not appear in their original state in the fossil record
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Detailed explanation-1: -For example, Jaekelopterus rhenaniae, a giant scorpion species that lived 255 million to 460 million years ago, was 2.5 meters long. Which of the following conclusions is supported by this info? They have changed as a result of natural selection.
Detailed explanation-2: -How can the pattern of change in the fossil record best be explained? The mollusks were well adapted to their stable environment. A large, sudden change occurred in their environment. After the change the mollusks with the bigger shells were better adapted for the new environment.
Detailed explanation-3: -Genetic Variation is Essential for Evolution by Natural Selection. For natural selection to occur, a population must have a wide variety of individuals with different traits. For example, natural selection would not influence fish body color if all individuals in a population were exactly the same color.
Detailed explanation-4: -Which statement about the beetles in this environment is best supported by the data? Green beetles are more fit for the environment than brown beetles are.
Detailed explanation-5: -What resources did the scientists most likely rely on to form their hypothesis. DNA and fossil record. The sequence of nitrogenous bases in DNA varies widely.